Powergen announces an 18.4% increase on its gas tariff and 9.7% increase on its electricity price. The increase affects all customers, except those that have previously signed up to a Capped price product from Powergen. The company blames unprecedented increases in the wholesale price of gas and electricity are behind the move.

New Powergen tariffs will be available for review on this service by Monday, August 21st, at Powergen's request.